Unicorn Cat Delete Pipes - E39 M5

3" Cat delete pipes constructed in T304 Stainless steel, mandrel bent, TIG welded & back purged. The cat delete pipes replaces the factory catalytic converters. Directly bolts on the Unicorn headers using v-band clamps and features flex joints to work with a variety of aftermarket x-pipes or factory resonator. Includes 3 sensor bungs on each pipe: 2 sensor bungs at the factory locations for the pre and post-cat O2 sensors, 1 additional sensor for AFR/wideband sensor for tuning/datalogging.